X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax.js;h=c255dfebaaeafb6247a13e29eb2d1d4453b57722;hb=434b87b8a233eb24ec773de801f3adb460fbd0f4;hp=2dcf87060313d70359973b1f811dc4d3f5ba13c1;hpb=35b8157507afaa28aa6e2e8efa5bb03315b33e1c;p=jquery.git

diff --git a/src/ajax.js b/src/ajax.js
index 2dcf870..c255dfe 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -3,7 +3,7 @@ jQuery.fn.extend({
 	_load: jQuery.fn.load,
 
 	load: function( url, params, callback ) {
-		if ( typeof url != 'string' )
+		if ( typeof url !== "string" )
 			return this._load( url );
 
 		var off = url.indexOf(" ");
@@ -12,8 +12,6 @@ jQuery.fn.extend({
 			url = url.slice(0, off);
 		}
 
-		callback = callback || function(){};
-
 		// Default to a GET request
 		var type = "GET";
 
@@ -26,7 +24,7 @@ jQuery.fn.extend({
 				params = null;
 
 			// Otherwise, build a param string
-			} else if( typeof params == 'object' ) {
+			} else if( typeof params === "object" ) {
 				params = jQuery.param( params );
 				type = "POST";
 			}
@@ -56,7 +54,8 @@ jQuery.fn.extend({
 						// If not, just inject the full result
 						res.responseText );
 
-				self.each( callback, [res.responseText, status, res] );
+				if( callback )
+					self.each( callback, [res.responseText, status, res] );
 			}
 		});
 		return this;
@@ -67,8 +66,7 @@ jQuery.fn.extend({
 	},
 	serializeArray: function() {
 		return this.map(function(){
-			return jQuery.nodeName(this, "form") ?
-				jQuery.makeArray(this.elements) : this;
+			return this.elements ? jQuery.makeArray(this.elements) : this;
 		})
 		.filter(function(){
 			return this.name && !this.disabled &&
@@ -78,7 +76,7 @@ jQuery.fn.extend({
 		.map(function(i, elem){
 			var val = jQuery(this).val();
 			return val == null ? null :
-				val.constructor == Array ?
+				jQuery.isArray(val) ?
 					jQuery.map( val, function(val, i){
 						return {name: elem.name, value: val};
 					}) :
@@ -97,6 +95,7 @@ jQuery.each( "ajaxStart,ajaxStop,ajaxComplete,ajaxError,ajaxSuccess,ajaxSend".sp
 var jsc = now();
 
 jQuery.extend({
+  
 	get: function( url, data, callback, type ) {
 		// shift arguments if data argument was ommited
 		if ( jQuery.isFunction( data ) ) {
@@ -151,6 +150,12 @@ jQuery.extend({
 		data: null,
 		username: null,
 		password: null,
+		// Create the request object; Microsoft failed to properly
+		// implement the XMLHttpRequest in IE7, so we use the ActiveXObject when it is available
+		// This function can be overriden by calling jQuery.ajaxSetup
+		xhr:function(){
+			return window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
+		},
 		accepts: {
 			xml: "application/xml, text/xml",
 			html: "text/html",
@@ -173,7 +178,7 @@ jQuery.extend({
 			type = s.type.toUpperCase();
 
 		// convert data if not already a string
-		if ( s.data && s.processData && typeof s.data != "string" )
+		if ( s.data && s.processData && typeof s.data !== "string" )
 			s.data = jQuery.param(s.data);
 
 		// Handle JSONP Parameter Callbacks
@@ -273,9 +278,8 @@ jQuery.extend({
 
 		var requestDone = false;
 
-		// Create the request object; Microsoft failed to properly
-		// implement the XMLHttpRequest in IE7, so we use the ActiveXObject when it is available
-		var xhr = window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
+		// Create the request object
+		var xhr = s.xhr();
 
 		// Open the socket
 		// Passing null username, generates a login popup on Opera (#2865)
@@ -304,10 +308,11 @@ jQuery.extend({
 				s.accepts._default );
 		} catch(e){}
 
-		// Allow custom headers/mimetypes
+		// Allow custom headers/mimetypes and early abort
 		if ( s.beforeSend && s.beforeSend(xhr, s) === false ) {
-			// cleanup active request counter
-			s.global && jQuery.active--;
+			// Handle the global AJAX counter
+			if ( s.global && ! --jQuery.active )
+				jQuery.event.trigger( "ajaxStop" );
 			// close opended socket
 			xhr.abort();
 			return false;
@@ -318,8 +323,18 @@ jQuery.extend({
 
 		// Wait for a response to come back
 		var onreadystatechange = function(isTimeout){
+			// The request was aborted, clear the interval and decrement jQuery.active
+			if (xhr.readyState == 0) {
+				if (ival) {
+					// clear poll interval
+					clearInterval(ival);
+					ival = null;
+					// Handle the global AJAX counter
+					if ( s.global && ! --jQuery.active )
+						jQuery.event.trigger( "ajaxStop" );
+				}
 			// The transfer is complete and the data is available, or the request timed out
-			if ( !requestDone && xhr && (xhr.readyState == 4 || isTimeout == "timeout") ) {
+			} else if ( !requestDone && xhr && (xhr.readyState == 4 || isTimeout == "timeout") ) {
 				requestDone = true;
 
 				// clear poll interval
@@ -378,11 +393,12 @@ jQuery.extend({
 				setTimeout(function(){
 					// Check to see if the request is still happening
 					if ( xhr ) {
-						// Cancel the request
-						xhr.abort();
-
 						if( !requestDone )
 							onreadystatechange( "timeout" );
+
+						// Cancel the request
+						if ( xhr )
+							xhr.abort();
 					}
 				}, s.timeout);
 		}
@@ -443,8 +459,7 @@ jQuery.extend({
 		try {
 			// IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
 			return !xhr.status && location.protocol == "file:" ||
-				( xhr.status >= 200 && xhr.status < 300 ) || xhr.status == 304 || xhr.status == 1223 ||
-				jQuery.browser.safari && xhr.status == undefined;
+				( xhr.status >= 200 && xhr.status < 300 ) || xhr.status == 304 || xhr.status == 1223;
 		} catch(e){}
 		return false;
 	},
@@ -455,8 +470,7 @@ jQuery.extend({
 			var xhrRes = xhr.getResponseHeader("Last-Modified");
 
 			// Firefox always returns 200. check Last-Modified date
-			return xhr.status == 304 || xhrRes == jQuery.lastModified[url] ||
-				jQuery.browser.safari && xhr.status == undefined;
+			return xhr.status == 304 || xhrRes == jQuery.lastModified[url];
 		} catch(e){}
 		return false;
 	},
@@ -470,17 +484,22 @@ jQuery.extend({
 			throw "parsererror";
 			
 		// Allow a pre-filtering function to sanitize the response
+		// s != null is checked to keep backwards compatibility
 		if( s && s.dataFilter )
 			data = s.dataFilter( data, type );
 
-		// If the type is "script", eval it in global context
-		if ( type == "script" )
-			jQuery.globalEval( data );
+		// The filter can actually parse the response
+		if( typeof data === "string" ){
 
-		// Get the JavaScript object, if JSON is used.
-		if ( type == "json" )
-			data = eval("(" + data + ")");
+			// If the type is "script", eval it in global context
+			if ( type == "script" )
+				jQuery.globalEval( data );
 
+			// Get the JavaScript object, if JSON is used.
+			if ( type == "json" )
+				data = window["eval"]("(" + data + ")");
+		}
+		
 		return data;
 	},
 
@@ -495,7 +514,7 @@ jQuery.extend({
 
 		// If an array was passed in, assume that it is an array
 		// of form elements
-		if ( a.constructor == Array || a.jquery )
+		if ( jQuery.isArray(a) || a.jquery )
 			// Serialize the form elements
 			jQuery.each( a, function(){
 				add( this.name, this.value );
@@ -506,7 +525,7 @@ jQuery.extend({
 			// Serialize the key/values
 			for ( var j in a )
 				// If the value is an array then the key names need to be repeated
-				if ( a[j] && a[j].constructor == Array )
+				if ( jQuery.isArray(a[j]) )
 					jQuery.each( a[j], function(){
 						add( j, this );
 					});